Machine for trimming and wiring wheelbarrow-trays.



No. 854,691.. PATBNTED MAY 21, 1907.

' M. A. DUQUETT. MACHINE FOR TRIMMING AND WIRING WHEELBARROW TRAYS.

APPLICATION FILED HAE.30,1906.

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APPLIUATION FILED EAR-30,1906.

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No. 854,691. PATENTED MAY 21, 1907.

M. A. DUQUETT. MACHINE FOR TRIMMING AND WIRING WHEEL BARRO W TRAYS.

APPLICATION FILED MAR.30,1906.

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WITNESSES INVENTUR QAMQ x mm: PETERS ca, wasnmcrou, u. c.

. PATENTED MAY 21, 1907 M. A. DUQUETT.

MACHINE FOR TRIMMING AND WIRING WHEBLBARROW TRAYS. APPLICATION FILEDMAE.30,1906.

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WITNESSES lNVENTUR 7H5 NORRIS PETERS 9a., WASHINGTON, RC

UNITED STATES PATENT OFFICE.

MAXIM A. DUQUETT, OF TOLEDO, OHIO, AS SIGNOR TO THE J. M. SKINNERBENDING COMPANY, OF TOLEDO, OHIO, A CORPORATION.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed March 30,1906. e al NO- 308,931.

To ctZZ whom it may concern.-

Be it known that I, MAXIM A. DUQUETT, a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Improvement in Machines for Trimmingand Wiring Wheelbarrow-Trays, of which the following is a specification.

My invention relates to a machine for trimming and wiring wheelbarrowtrays and the like and has for its object to provide an effectivemachine of the kind and for the purpose that is adapted to both trim andwire a wl'ieelbarrow tray progressively at the same time. I accomplishthis object by the novel construction, combination and operation ofparts hereinafter described and illustrated in the drawings, in whichFigure 1 is a top plan view of my invention. Fig. '2 is a cross sectionof the same on line 90-03 of Fig. 1. Fig. 3 is a front end view of thetrimming head. Fig. 4 is a longitudinal vertical section through abeading head on line y-y of Fig. 1. Fig. 5 is a similar view of amodified form of beading head. Fig. 6 is a similar view of a beadinghead. Fig. 7 is a cross section of Fig. 4 on line z-z. Fig. 8 is a crosssection of Fig. 1 on line ac-:r. Fig. 9 is a view of the head shown inFig. 6, showing the plunger raised. Fig. 10 is avertical longitudinalsection of a modified form of beading head. Fig. 11 is a plan view of abeading head mounted on swinging arms, and 12 is a side elevation of thesame showing the arm of the beading head in cross section.

In the drawings 1 designates the base or bed plate upon which theoperating mechanism is mounted, the base being provided on the underside with ribs 2 which radiate from a centrally located hub portion 3,and with radial platform projections 4 which form bases for radialcutting and beading heads, and the diametric projections 5 which formthe bases of the press arch, the base 1 havportions cut away between theradiating ribs to lighten the base.

The-base 1 is mounted at radial points on suitable standards orpedestals 6 which support the base at a suitable height.

The hub 3 is provided with a central vertical bore 7, in which isjournaled a short shaft 8, and at four equidistant radial points fromthe axis of the shaft 8, located on diametric lines crossing at rightangles are mounted on the base 1, the brackets 9, in which are journaledthe rollers 10. Upon the top of the hub 3 is mounted the pedestalbearing 11 which is secured to the base, concentric to the shaft, and iscounterbored at the top to receive a suitable annular bearing plate 12.

Upon the top end portion of the shaft 8 is fixedly mounted the hub 13 ofthe master worm gear Wheel 14, the rim portion 15 of which is supportedon the rollers 10, which are adapted to support and maintain the wheelin a horizontal plane. T To spokes 16 of the master wheel 14 are webbedon their upper faces and the web 17 is provided with suitable openingsbetween the spokes to lighten the wheel.

Centrally of the master wheel, there is mounted on and secured to theweb a tray pedestal 18, having its upper portion provided with a flange19 extending around the top of the pedestal portion in a horizontalplane, and the flangeis beveled from its lower outer edge, inwardly andupwardly to form a tray base 20, that is adapted to coincide with theinner rim face of the press drawn, untrimmed wheelbarrow tray 21, andsupport the tray in an inverted position.

Around and parallel with the lower outer edge of the tray base, whichconforms to the inner rim of the tray, there is mounted and secured onthe master wheel, a cam 22, which comprises the horizontal base 23,and'the parallel vertical cam walls 24 and 25.

Diametrically spanning the master wheel there is mounted on the baseprojections 5, a press arch comprising the side sections 26 which areprovided with suitable base flanges whereby they are mounted and securedon the base projections 5, and the top section 27, the end portions ofwhich are adapted to be secured to the top ends of the side sec tions.The top section is centrally provided with an enlargement 28, which iscentrally bored in vertical alinement with the axis of the shaft 8 ofthe master wheel, and internally threaded to receive a press screw 29,having a wheel 30 or any other suitable means for running the screwupward and downward through the arch. The lower end portion of the screwis reduced to form a shoulder 31 and a journal 32, which eX- tendsthrough an anti-friction bearing 33,

comprisin a semi-spherical upper section 34, the flattened top of whichshoulders against the shoulder 31 and the complementary socket section35 having a flattened base, and through the central top portion 36 of atray holder 37, having a rim portion 38, which is adapted to coincidewith the tray base 20, or with the outer rim portion 38 of a tray 21mounted on the tray base. The rim 38 is integral with the arms 39,radiating downwardly and outwardly from the top portion 36, as a hub.

The hub 36 is cylindrical above the arms, and fiat at its upper end,upon which is mounted a bearing plate 40, which is provided with anannular groove on its upper face, which is complementary to a groove inthe lower face of the socket section 35 of the bearing 33, the groovesbeing provided with balls 43, which receive the thrust of the screw whenthe tray holder is pressed by the screw down upon a tray mounted on thetray base 20 as shown in Fig. 2. The lower end portion of the journal 32of the screw is provided with a washer 44 and a pin 45, below thewasher, which adapts the screw when run upward to lift the tray holderfrom the tray base 20, a suitable distance to permit a tray that is tobe wired to be mounted in position on the tray base. Thus constructed,when the tray holder is pressed down on a tray mounted on the tray base,the master wheel, the tray base, the tray, and thetray holder arerevoluble together between the bearings 12 and 33.

Upon the base projections 4, are adapted to be mounted the pedestals 46,each of which has formed in the top portion thereof an elongatedrectangular guide box 47 open at the ends and having the interiorlyfaced integral bottom 48 and sides 49, and the detachable top plate 50.The pedestals 46 are so mounted on their bases 4 that aline longitudinal and central of each box 47 is parallel with a line radial to theaxis of the shaft 8, of the worm wheel 14.

In the boxes 47 are telescopically mounted the rectangular box shapedarms 51 of the trimming and beading heads, the arms comprisingthe sides52 and top 53 integral with the heads, and the bottom plate 54 havingrabbeted sides 55,,interlocking with complementaryrabbeted grooves inthe sides 52, and a lug 56 central of the outer end portion of thesliding plate 54. To the under side of the inner end portion of thebottom plate there is pivotally mounted. on a stud pivot a roller 57which is located between the walls 24 and 25 of the cam 22.

The arms 51 have secured to the outer ends of the top and sides the endplate 58 which is provided with a central bore, and interiorly threadedto receive a screw' 59, the inner end portion 60 of which is reduced andjournaled in a suitable bore in'the lug 56 of the bottom plate. Aportion of the journal 60 extending beyond the lug, is threaded andprovided with a nut 61. On the outer end of the screw is mounted a handwheel 62. By this construction the roller 57 of the bottom plate beingbetween the inner and the outer walls of the cam 22, by turning thescrew the arm and its head is adjusted inward and outward relative tothe bottom plate according to the direction in which the wheel isturned.

The heads of the arms 51 are extensions from the tops and sides of thearms, and dif fer in construction.

The trimming head comprises the lower bearing jaw 63, which rests on andis adapted to slide along the top of the inner endportion of the bottomplate 54, and the upper jaw 64, angled upward and inward over the lowerjaw, and is provided with an upper end portion 65, which forms one-halfof a vertical split bearing 66, the other half of which is boltedthereto, and in vertical alinement with the bearing 66, the lower jaw isprovided with a bearing 67, in which is j ournaled the lower journal 68of a swivel head 69, which is provided with an upper enlargedcylindrical journal portion 70, which is j ournaled. in the bearing 66of the upper jaw, and is integral with an eccentric recessed middleportion 71, which extends outward into the opening between the upper andlower jaws of the head,and is adapted to swing therein on the journals68 and 7 O. The upper journal portion 7 O is provided with a cap plate 72, which is bored axial to the journal and interiorly threaded toreceive the adjusting screw 7 3, the upper end portion of which isprovided with the hand wheel 74 for operating the screw. The lower endportion of the screw is pivotally secured in a sliding plunger 75, whichis movable by the screw upward and downward in the bore of the journal70. Above the lower journal 68 of the swivel the lower portion of theswivel head is rabbeted to form a shoulder face 76, in a vertical planeof the axis of the screw 73 that is at right angles to a line extendingthe axis of the screw 59 of the arm 51, and abutting the shoulder faceis pivotally mounted by a journal screw 7 7, the shear wheel 78 having adiameter to extend the wheel above the lower face formed by the recessof the swivel, and slightly above the plane of the lower face of thebeveled flange of the tray base 20. The shear wheel 78 is journaled toone side of a line axial ofthe journals 68 and of the swivel in thedirecton of the revolution of the master wheel, and above in a suitableincut in the lower end portion of the plunger is journaled by a pin 79,a companion shear wheel 80, the outer face of which coincides with theplane of the inner face of the shear wheel 78, and the ournal pin 79 ofthe wheel 80, is in the same vertical plane with the journal screw ofthe wheel 78. The peripheries of the shear wheels are oppositely beveledforming cutting edges, which shear past each. other when the wheel ismoved downward by the screw 73. In suitable bearings 81, secured to orformed integral with the pedestal of the trimming head there isjournaled a driving shaft 82, which has formed or secured thereon a worm83, which engages suitable worm teeth formed on the periphery of themaster wheel. The driving shaft is connected by suitable means not shownfor operating the shaft. Thus constructed, to adjust the trimming headto trim the flange of a tray mounted on the tray base 20 the shear wheel80 is raised a suitable distance by the screw 73, and the head is runinward by the screw until the shear wheel 78 is below the untrimmedflange of the tray a suitable distance from the outer edge of the traybase, with the tray flange extending into the recess of the swivel. Thusadjusted, the master wheel being set in motion by the driving shaft, theshear wheel 80 is pressed on top of the tray flange by the screw untilit cuts through the flange, and. as the master wheel revolves the flangeof the tray is carried around with it between the shear wheels, the camautomatically adjusting the head to maintain the shear wheels at auniform radial distance from the tray base, and the swivel automaticallyadjusting the shear wheels to the direction of pull, whereby the trayflange is trimmed to a uniform width suitable for the wiring of thetray.

Upon the remaining pedestals 46 there are mounted the arms 51 of thebeading and wiring heads, the arms being in all respects constructed andmounted as described for the arm of the trimming head. The beading andwiring heads, however, may be of either of the several forms showninFigs. 4, 5, 6, and 8, as may be best suited to the thickness of metalused in forming the tray, or they may be used singly, or in series, tocomplete the operation of wiring. When used in series, each succeedinghead further advance the work of the preceding head, thereby advancingthe operation by stages that make the work lighter for each.

In Fig. 4 is shown a heading head 84 wherein a grooved wheel 85 ismounted in a segment 86 that is movable through an are by a lever 87,the segment being mounted in arc grooves 88 in the sides 89 of the headby pins not shown, one of which sides is provided with incuts 90, whichare engaged by a dog 91, operated by a bell crank hand lever 92 adaptedto be grasped with the handle of the lever 87, which construction adaptsthe wheel of the segment to be adjusted to any desired angle to the arcthrough which the segment moves. The head 84 has secured to its innerend a plate 93 which has a central opening through which projects thebeading wheel 85, and below the opening the plate has pivotally securedthereto parallel and abutting its inner face a bearing wheel 94, whichengages the under side of the wiring flange of the tray below the pointof its engagement by the beading wheel 85, and prevents the downwardcrushing of the flange by the beading wheel. The head 84, in traysformed of light metal, is adapted singly to complete the operation ofwiring in a single revolution of the master wheel, but when heaviermetal is used for forming the tray, it is adapted to advance theoperation, each revolution of the master wheel, by adjusting the head ata different angle at the end of each revolution, until the operation iscomplete, or used with other beading heads it is adapted to advance theoperation one stage.

In Fig. 5 is shown another form of beading and. wiring head 95 formed011 the inner end of an arm 51 which is provided with a horizontalrecess opposite the tray flange in which is mounted on a suitablejournal the grooved beading wheel 96, having a flange increasing thediameter of its lower face and extending underneath and supporting theflange of the tray. Above the beading wheel 96 the head 95 is providedwith a rectangular box shaped enlargement, which is inclined outward andupward at a suitable angle, having the parallel sides 97 integral withthe bottom portion 98, and to the tops of the sides is secured the topplate 99. The box thus. formed is finished inwardly to receive theplunger a, in the lower end portion of which is journaled on a pin 1),the beading wheel 0, having a flange c which is grooved complementary tothe groove of the lower beading wheel 96. To the outer edge of theplunger box there is secured the end plate (Z, which is centrally screwtapped to receive the screw c, the inner end portion of which ispivotally secured to the upper end portion of the plunger a. The outerend of the screw is provided with a hand wheel by which the screw isoperated to adjust the plunger. Thus constructed, when the head isadjusted inward until the flange of the beading wheel 96 is underneaththe wiring flange of the tray, the outer edge of the tray flange iscurved upward and slightly inward. by the groove of the wheel '96 whereit engages the groove of the upper beading wheel 0, which completes thewiring. hen the head is used in series, with other heads, by adjustmentof the beading wheels the head is made adapted to any one of the severalstages of complete wiring, according to its location in the series.

In Fig. 6 is shown a form of beading head 9, having the lower jaw it,provided with a vertical bearing i, in which is horizontally mounted bythe journal j, the grooved beading, wheel is, having a flange increasingthe di ameter of its bearing face and adapted when the wiring flange ofthe tray is engaging the groove of the wheel to extend beneath andengage the under side of the tray flange. The beading wheel 7c isprovided, with the axial bore 1 which extends through the journal j, andis countersunk in the body of the wheel. The head 9 is provided with anupper jaw m, which is provided with the cylindrical enlargement n, theaxis of which is a vertical extension of the axis of the wheel Thecylinder at has mounted therein a sliding cylindrical plunger 0, whichis adjustable upward and downward by a screw p operated by a hand wheelq, and journaled in the lower end of the plunger is a beading wheel 7",that is complementary to the beading wheel 7c, and has a conical axialextension from its lower face that is adapted to enter the counter-sunkportion of the axial bore of the wheel 7c. Thus constructed, theoperation of the head when it is used to perform the entire operation ofwiring is as follows. The plunger 0 being first raised, the arm of thehead is moved inward by its screw until the beading wheel k is movedinto engagement with the wiring flange of the tray and the groovedportion has curved the flange upward and partially inward, in whichposition the plunger is moved downward until the wheel 1 is pressed onthe upturned portion of the flange, and gradually further depressedafter each revolution of the master wheel until the wiring is complete.The head 9 however, like the others described may be used to advance, by

a single stage, the operation of completing the wiring in a singlerevolution of the master wheel by a series of heads, as beforedescribed.

In Fig. 10 is shown a beading head which in its construction is similarto the trimming head and comprises a lower j aw 63 adapted to slide onthe bottom plate 54 of the arm, an upper jaw 64, provided with a splitbearing 66 which is axially alined with a bearing 67 of the lower aw, inwhich is journaled the lower journal 68 of a swivel head 69, which isprovided with an upper cylindrical journal portion'70 which is journaledin the bearing 66 of the upper jaw, and is integral with an eccentricrecessed middle portion 71 which extends into the opening between theupper and lower jaws of the head, and is adapted to swing therein 011the journals 68" and The upper journal 70 is provided with a closureplate 7 2 which is bored and screw threaded to receive the adjustingscrew 7 3 the upper end portion of which is provided with a hand wheel74. The lower end portion of the screw is pivotally secured to the upperend of a sliding plunger 7 5 which is movable upward and downward in thebore of the ournal 7 O. A portion of the swivel head above the lowerjournal 68 is cut away to form a vertical shoulder face 7 6 that is atright angles to the axis of the screw 59, if extended, and abutting theshoulder face is pivotally mounted by a journal screw 77 the flangedbeading wheel 78 having a flange diameter to extend the flange above thelower face formed by the recess of the swivel head, while the main bodyportion of the wheel 7 8 is of a diameter and length to projectunderneath and in engagement with the under face of the tray base. Themain body portion of the wheel 7 8 is increased in diameter by anincurve toward and merging into the flange, whereby when the head ismoved inward by the arm screw the incurve engages the outer edge of thetray flange, and curves it upward. Above and in alinement with theincurved flanged end of the beading wheel 78 the lower end of theplunger is bifurcated to receive a complementary grooved beading wheel80, which is rotatably mounted on a journal pin 79 the two wheels 78 and8O,wl1ich are journaled off to one side of a line axial to the journalsof the swivel (as shown in Fig. 3 for the trimming head),-when graduallybrought into contact by the screw 73, with the tray flange between,being adapted to complete the wiring of the tray flange, (as shown inFig. 10), in a series of revolutions of the master wheel, or to completethe wiring in one revolution when employed as one of a series of beadingheads, each progressively advancing the operation of wiring.

Thus constructed when a tray to be wired is mounted on the tray base 20and secured thereon by the tray holder 37, with a wire 87 around andparallel with the lower edge of the rim 38 and resting on the wiringflange of the tray, the operation is as follows. All of the beadingheads are withdrawn and the trimming head, with the upper shear wheelslightly raised above the lower shear wheel to admit the wiring flangeof the tray between them into the recess of the swivel head, when theshear wheels .are adjusted to a suitable margin for the flange, theupper shear wheel is gradually pressed downward on the flange as themaster wheel revolves until it cuts through the flange, after which asthe trimmed portion reaches each beading head, the head is adjustedthereto to perform some portion of the operation of the beading. Afterthe trimming is completed the trimming head is Withdrawn, while theseries of beading heads complete the operation of wiring. Or either oneof the beading heads may be used to singly complete the operation in aseries of revolutions of the master wheel, by changing the adjustment atthe end of each revolution.

In Figs. 11 and 12 are shown a modified form of mounting the arms of thetrimming and the beading heads wherein the pedestals 46 are omitted, andthe guide box 47 is movably mounted on a pedestal 46, which is mountedand secured on a platform .4 radial to and projecting from the base 1 ata suitable distance from the platform 4, upon which is mounted thecolumns A, having suitable flanged bases A by which they are secured tothe platform 4. The columns A are mounted on the platform 4 at differentdistances from the platform 4, but at the same radial distance from themaster wheel, and the columns are provided with axial bores in which aremounted the ournal pins B, upon which are respectively pivoted the outerends of the long arm C and the short arm C, the opposite ends of whichare pivoted by the pins D and D respectively, to the bifurcated bracketarms E and E respectively, of the guide box 47. The bottom plate 54 ofthe guide box 47 is made integral therewith, so that the cam roller 57pivotally secured thereto at the inner end is adapted to slide the guidebox inward and outward on the pedestal 46 as the roller follows the camsof the master wheel, while the arms 0 and c are adapted to maintain theguide box substantially radial to the axis of the master wheel. Theguide box 47 being,-in all other respects excepting the bottom plate 54being integral therewith,the same in constructionas the guide box 47,the arms 51 of the several trimming and beading heads described may bemounted therein without modification of their construction and the headsare adjustable by the screw 59 relative to the wiring flange of the trayin the same manner as already described. By so mounting the trimming andbeading heads all lat eral strain of the arms 51 in the guide box 47 bythepull of beading and shear wheels is wholly avoided, such pull beingalmost always directly in line with the long arm 0, while the jointpivotal movement of the two arms 0 and C is such as to greatly reducethe friction of the substantially radial adjustment of the head to thecam of the master wheel, and by reason of this reduced friction, theswinging heads are preferably used in heavy beading and trimming work.

What I claim to be new is 1. In a machine for trimmmg and wiringwheelbarrow trays and the like, the combination of a support, a wheeltable revolubly mounted on the support, a tray base of any regular orirregular form other than acircle mounted and secured centrally on thetable, a tray holder, means to press the tray holder on a tray mountedon the tray base, a trimming .or a beading head mechanically andautomatically adjustable radial to the tray base, means to mechanicallyadjust the head at a radial distance from the tray base, means torevolve the table and means to automatically maintain the head at suchradial dis tance from all radial points of the tray base, as the tablerevolves, substantially as set forth.

2. In a machine for trimming and wiring wheelbarrow trays and the like,the combination of a support, a wheel table revolubly mounted on the suport, a tray base of any regular or irregular orm other than a circle,mounted on the table centrally, a cammounted on the table around thetray base, having a groove of uniform width, at equal radial distance atall points from the rim of the tray base, a tray holder, means to pressthe tray holder on a tray mounted on the tray base, a mechanically andautomatically adjustable trimming head having a wheel adapted to followthe groove of the cam and to thereby move the head radially and maintainthe head at a uniform distance from the tray base, and means to revolvethe table, substantially as set forth.

3. In a machine for trimming and wiring wheelbarrow trays and the like,the combination of a support, a wheel table revolubly mounted on thesupport, a tray base of any regular or irregular form other than acircle, mounted centrally on the table, a cam mounted on the tablearound the tray base, having a groove of uniform width, at equal radialdistance at all points from the rim of the tray base, a trimming headand a beading head, each movable radially to the wheel table, and eachmechanically adjustable toward or from the tray base, and each having afollower wheel engaging the cam, and adapted to maintain the head at theradial distance from the tray base to which it is mechanically adjusted,and means to revolve the wheel table, substantially as set forth;

4. In a machine for trimming and wiring wheelbarrow trays and the like,the combination of a support, a wheel table revolubly mounted onthesupport, a tray base of any regular or irregular form other than acircle, mounted and secured centrally on the table, a cam mounted on thetable around the tray base, and having a groove of uniform width atequal radial distance at all points from the rim of the tray base, atrimming head and a series of beading heads, each movable radially tothe wheel table, each head being mechanically adjustable toward or from'the tray base, and each having a follower wheel engaging the cam andadapted to maintain the head at the radial distance from the tray baseto which it is mechanically adjusted, and means to revolve the wheeltable, substantially as set forth.

5. In a trimming and beading machine, the combination of a main support,a wheel table revolubly mounted on the main support, a work holdermounted centrally on the wheel table, a cam mounted on the wheel tablearound the work support, a beading head support mounted on the mainsupport, a guide box mounted on the beading head support in lineparallel with a line radial to the axis of the wheel table, a beadinghead having an arm, and movably supported by the arm in the guide box,said arm'having a base plate provided with a roller adapted to enforth.

gage the cam, and means to adjustably connect the base plate and the armwhereby the beading head is adapted to be adjusted radially inward oroutward relative to the work holder and the cam independently of thebase plate.

6. The combination in a trimming head of an upper and lower jaw, arecessed swivel head journaled in the jaws by upper and lower axiallyalined journals, a plunger mounted in the upper journal and adjustableupwardly and downwardly therein, a lower shear wheel journaled in thelower jaw, an upper shear wheel journaled in the plunger, and adjustableby the plunger to shear past the lower shear wheel, both of said shearwheels being journaled to revolve in coinciding vertical planes,transverse the swivel and with their centers off the axial line of thejournals of the swivel, substantially as set 7. In a machine fortrimming and beading wheelbarrow trays, the combination of a support, awheel table revoluble 011 the support,

a tray base mounted centrally on the wheel table an arch mounted on thesupport diametrically spanning the wheel table, and having a threadedorifice in line with the axis of the table, means to hold a tray on thetray base comprising a tray holder, and a screw, the screw beingthreaded into the orifice of the arch, and pivotally connected to thetray holder, an anti-friction bearing interposed between the screw andthe tray holder, andmeans to operate the screw to raise or lower thetray holder.

8. The combination in a beading head of an upper and lower jaw, arecessed swivel head journaled in the jaws by upper and lower axiallyalined journals, a plunger mounted in the upper journal and adjustableupwardly and downwardly therein, a grooved beading wheel journaled inthe plunger, and adjustable by the plunger relative to the lower beadingwheel, both of said beading wheels being journaled to revolve transversethe swivel and with their centers off the axial line of the journals ofthe swivel and means to adjust the plunger upwardly and downwardly ofthe swivel, substantially as set forth.

9. In a machine for trimming and wiring wheelbarrow trays and the like,the combination with a horizontal base having a central bearing, androller bearings located radial to the central bearing, of a master wheeljournaled in the central bearing and having its rim portion supported onthe roller bearings, a tray support secured centrally on the masterwheel, an arch mounted on the base and diametrically spanning the masterwheel, a screw in the arch in axial alinement with the axis of themaster wheel, a tray holder adapted to hold a tray mounted on the traysupport, said tray holder being pivoted on the lower end of the screw,and adapted to be raised and lowered by the screw and pressed thereby onthe tray support, an anti-friction bearing interposed between the screwand the tray holder, and together with the roller bearings of the masterwheel adapting the master wheel, the tray support, and the tray holderwhen pressed on the support by the screw to be revolved between thebearings, means to revolve the master wheel, and means to operate thescrew.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses, this 14th day of February, 1906.

MAXIM A. DUQUETT.

In presence of:

GEO. P. KIRBY, MINNIE MILLER.

